<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <script>
        var name = 'jack';
        var age = 18;
        var sayHi = function () {
            console.log('say hi');
        }
        var name1 = 'andy';
        var age1 = 19;
        var sayHi1 = function (){
            console.log('say hi');
        }
        var name2 = '老周';
        var age2 = 29;
        var sayHi2 = function () {
            console.log('say hi');
        }
        console.log(name1);
        console.log(name2);
        console.log(name);
        
        var obj1 = {
            name:'andy',
            sayHi:function(){
                console.log('say hi');
            }
        }
        var obj2 = {
            name:'jack',
            sayHi:function(){
                console.log('say hi');
                
            }
        }
        console.log(obj1.name);
        console.log(obj2.name);
        
    </script>
</body>
</html>